RDPOverlayStyle.m

/*
 Shared look of the session overlays (key bar, extended keyboard, toolbar)
 
 This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 If a copy of the MPL was not distributed with this file, You can obtain one at
 http://mozilla.org/MPL/2.0/.
 */
 
#import "RDPOverlayStyle.h"
#import "Utils.h"
 
void RDPApplyKeyCapColors(UIButtonConfiguration *config, BOOL latched, BOOL pressed);
 
BOOL RDPSupportLiquidGlass(void);
 
UIVisualEffectView *RDPCreateGlassCapsuleView(void)
{
  UIVisualEffect *effect;
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 260000
  if (@available(iOS 26.0, *))
  {
    effect = [UIGlassEffect effectWithStyle:UIGlassEffectStyleRegular];
  }
  else
#endif
  {
    effect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleSystemChromeMaterial];
  }
 
  UIVisualEffectView *view = [[[UIVisualEffectView alloc] initWithEffect:effect] autorelease];
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 260000
  if (@available(iOS 26.0, *))
  {
    [view setCornerConfiguration:[UICornerConfiguration capsuleConfiguration]];
  }
  else
#endif
  {
    [view setClipsToBounds:YES];
    [[view layer] setCornerCurve:kCACornerCurveContinuous];
  }
  return view;
}
 
void RDPUpdateGlassCapsuleCorners(UIVisualEffectView *view)
{
  if (RDPSupportLiquidGlass() == YES)
  {
    return;
  }
 
  CGSize size = [view bounds].size;
  [[view layer] setCornerRadius:MIN(size.width, size.height) * 0.5];
}
 
UIImage *RDPWindowsLogoImage(CGFloat size)
{
  UIGraphicsImageRenderer *renderer =
      [[[UIGraphicsImageRenderer alloc] initWithSize:CGSizeMake(size, size)] autorelease];
 
  // draw 4 square like windows logo
  UIImage *image = [renderer imageWithActions:^(UIGraphicsImageRendererContext *context) {
    const CGFloat gap = MAX(1.0, round(size * 0.08));
    const CGFloat tile = (size - gap) * 0.5;
    [[UIColor blackColor] setFill];
    UIRectFill(CGRectMake(0, 0, tile, tile));
    UIRectFill(CGRectMake(tile + gap, 0, tile, tile));
    UIRectFill(CGRectMake(0, tile + gap, tile, tile));
    UIRectFill(CGRectMake(tile + gap, tile + gap, tile, tile));
  }];
  return [image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
}
 
UIButton *RDPCreateKeyButton(NSString *title, UIImage *image)
{
  UIButtonConfiguration *config = [UIButtonConfiguration grayButtonConfiguration];
  [config setCornerStyle:UIButtonConfigurationCornerStyleMedium];
  [config setContentInsets:NSDirectionalEdgeInsetsMake(4.0, 4.0, 4.0, 4.0)];
 
  if (title != nil)
  {
    [config setTitle:title];
    [config setTitleLineBreakMode:NSLineBreakByClipping];
  }
  else if (image != nil)
  {
    [config setImage:image];
  }
  else
  {
    return nil;
  }
 
  RDPApplyKeyCapColors(config, NO, NO);
 
  UIButton *btn = [UIButton buttonWithConfiguration:config primaryAction:nil];
  [btn setExclusiveTouch:YES];
  [btn setConfigurationUpdateHandler:^(UIButton *button) {
    UIButtonConfiguration *updated = [[[button configuration] copy] autorelease];
    RDPApplyKeyCapColors(updated, [button isSelected], [button isHighlighted]);
    [button setConfiguration:updated];
  }];
  return btn;
}
 
UIButton *RDPCreateTabButton(NSString *title)
{
  UIButton *btn = RDPCreateKeyButton(title, nil);
  if (btn == nil)
    return nil;
 
  // set style
  UIButtonConfiguration *config = [[[btn configuration] copy] autorelease];
  [config setCornerStyle:UIButtonConfigurationCornerStyleCapsule];
 
  [btn setConfiguration:config];
  return btn;
}
 
void RDPApplyKeyCapColors(UIButtonConfiguration *config, BOOL latched, BOOL pressed)
{
  UIColor *background;
  if (latched)
    background = pressed ? [UIColor secondaryLabelColor] : [UIColor labelColor];
  else
    background = [UIColor colorWithDynamicProvider:^UIColor *(UITraitCollection *traits) {
      if ([traits userInterfaceStyle] == UIUserInterfaceStyleDark)
        return pressed ? [UIColor systemGray2Color] : [UIColor systemGray3Color];
      return pressed ? [UIColor systemGray4Color] : [UIColor whiteColor];
    }];
 
  [[config background] setBackgroundColor:background];
  [config
      setBaseForegroundColor:latched ? [UIColor systemBackgroundColor] : [UIColor labelColor]];
}
 
BOOL RDPSupportLiquidGlass(void)
{
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 260000
  if (@available(iOS 26.0, *))
    return YES;
#endif
  return NO;
}